Under the old USSR, if any male with Russian heritage, but was a citizen of America, or France, or England, etc. was caught in the USSR, they could and would be conscripted into the USSR's military.
Even American Jews have to ASK FOR dual citizenship, in Israel; they aren't automatically given it.
It does. Trump's mother was born in Scotland to TWO Scottish/British parents. Trump is British alright according to British nationality law.